Question

the density of the gas is found to be 2.07gLinverse at 30 degree celsius and 2 atm pressure,what is the density at NTP

Answer 1

Explanation:

Molecular mass of gas is constant.

Applying the formula P

1

=

M

D

1

RT

1

,P

2

=

M

D

2

RT

2

T

1

=303 K

At NTP, T

2

=298 K, P=1 atm

So,

D

1

T

1

P

1

=

D

2

T

2

P

2

D

2

=

2×298

1×2.07×303

=1.149 gL

−1

.